9E-Crossword

1. A device that converts an electrical audio signal into a corresponding sound
5. An output machine which makes a representation of graphics or text, usually on paper
7. Only readable when the correct PIN is entered in to the reader
10. one or more Central Processing Units that carry out software instructions
12. An optical device that projects an image onto a surface
14. the memory in the computer system which is used for running software.
16. Senses finger movements, touches & presses
17. Type of barcode
19. An output device that allows users to see the output from the computer on an electronic display
21. A scanner that requires a microphone.
23. this interface is controlled by the user giving spoken commands to the device.
26. Type of touch screen
27. used to make a device inactive so that it requires a password or PIN to reactive it
28. a device’s ability to connect to networks and other devices.

1. A type of security to prevent unauthorized access to data.
2. this interface is controlled by the user by swiping their fingers on the screen or across the screen.
3. A type of printer that contains a rotating cylinder that holds an electrical charge
4. A pair of earphones joined by a band placed over the head, for listening to audio signals such as music or speech
6. A bar code reader is an example of what type of a device?
8. a user interface controlled by a pointer on the screen
9. An output device which is used for printing plans, maps, line diagrams and three-dimensional drawings
10. Dot-matrix, Inkjet and Laser are all types of which computer peripherals?
11. Control devices are also known as this
13. Printers that create real-life versions of digital models
15. What is a device that converts computer output into a form that can be transmitted over a telephone line?
18. Used to select displayed objects
20. A computer security system
22. a user interface controlled by entering text instructions
24. Another name for dot matrix printers
25. Specialized cameras